Throat Pain After Gastroscopy: Causes and Concerns - Gastroenterology and Hepatology

Throat issues

This afternoon, after undergoing an upper gastrointestinal endoscopy at Chang Gung Memorial Hospital in Taoyuan, I initially thought the throat anesthesia hadn't worn off yet.
However, now that it's evening and 12 hours have passed, swallowing saliva, drinking water, and eating all cause pain in my throat.
I'm not sure if I was too nervous and didn't breathe properly during the procedure.
I experienced some nasal congestion and had to breathe through my nose while exhaling through my mouth, which may have prevented my throat from relaxing.
During the examination, I also felt a sour sensation as stomach acid came up, and I had a dry heave.
I'm concerned if the endoscope might have caused any injury to my throat or esophagus.
What symptoms would indicate an injury to the esophagus? Currently, swallowing saliva, drinking, and eating are extremely painful for my throat.

Chen, 40~49 year old female. Ask Date: 2024/02/19

Dr. Lin Minghui reply Gastroenterology and Hepatology

Esophagogastroduodenoscopy (EGD) is an invasive procedure that can cause anxiety, nausea, vomiting, and gastroesophageal reflux, which may lead to mucosal injury at the sites of esophageal and gastrointestinal narrowing.
Common symptoms of esophageal injury include chest pain, and most patients experience throat discomfort after the procedure, which typically resolves gradually.
If throat pain persists and the condition is severe, it is recommended to follow a gentle diet, consider pharmacological treatment, or seek local treatment from an otolaryngologist.
Wishing you good health!

Reply Date: 2024/02/19

More Info

After undergoing a gastroscopy, experiencing throat pain can be concerning, and it’s important to understand the potential causes and implications of this discomfort. Gastroscopy, also known as esophagogastroduodenoscopy (EGD), involves the insertion of a flexible tube with a camera (the endoscope) through the mouth and into the esophagus, stomach, and duodenum. While this procedure is generally safe, some patients may experience side effects, including throat pain, after the examination.

Causes of Throat Pain After Gastroscopy
1. Anesthesia Effects: During the procedure, a local anesthetic is often applied to the throat to minimize discomfort. This can lead to temporary numbness, which may cause a sensation of pain or discomfort once the anesthetic wears off.

2. Irritation or Trauma: The endoscope can cause irritation to the throat and esophagus, especially if the patient is tense or does not cooperate well during the procedure. If the endoscope is pushed too forcefully or if the patient gags, it can lead to minor trauma in the throat or esophagus.

3. Acid Reflux: As you mentioned, experiencing a sensation of gastric acid rising during the procedure can exacerbate throat pain. Acid reflux can irritate the lining of the throat and esophagus, leading to discomfort.

4. Muscle Strain: If you were tense or anxious during the procedure, you may have unconsciously strained the muscles in your throat, contributing to the pain.

Symptoms of Esophageal Injury
If there is concern about potential injury to the esophagus, certain symptoms may indicate this:
- Severe Pain: If the pain is intense and persists, it may suggest a more serious issue.

- Difficulty Swallowing: If you experience significant trouble swallowing food or liquids, this could indicate esophageal damage.

- Bleeding: Any signs of blood in your saliva or stool should be taken seriously and warrant immediate medical attention.

- Persistent Vomiting: If you are unable to keep food or liquids down, this could be a sign of complications.

When to Seek Medical Attention
If your throat pain persists beyond a few days, worsens, or is accompanied by any of the aforementioned symptoms, it is crucial to consult your healthcare provider. They may recommend further evaluation, which could include imaging studies or an additional endoscopy to assess for any injuries or complications.

Management of Throat Pain
In the meantime, here are some strategies to manage your throat pain:
- Hydration: Drink plenty of fluids to keep your throat moist. Warm teas or broths can be soothing.

- Avoid Irritants: Stay away from spicy, acidic, or very hot foods that may further irritate your throat.

- Pain Relief: Over-the-counter pain relievers, such as acetaminophen or ibuprofen, may help alleviate discomfort.

- Rest: Allow your body to recover by resting your voice and avoiding strenuous activities.

Conclusion
While throat pain after a gastroscopy can be a common side effect, it is essential to monitor your symptoms closely. If the pain persists or worsens, or if you experience any alarming symptoms, do not hesitate to reach out to your healthcare provider for further evaluation. They can provide guidance tailored to your specific situation and ensure that any potential complications are addressed promptly.

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